After you realize that it s not an electrical or thermostat problem the chances of it being a problem with the motor are quite high.
Fixing attic fan from inside.
Attic fans usually last around 4 5 years if they re used regularly.
Look inside your attic for mold and rotted sheathing.
Professional installation will run an added 80 to 100 per hour.
Open the attic access door.
Get a quieter attic fan.
Make the final repair as soon as weather permits.
After that different parts get worn down and require fixing or replacement.
The last remaining option is to replace your attic fan with a new and quieter model.
If the motor isn t working you will need an attic fan motor replacement or attic replacement fan.
Repairing a roof leak from the inside is a temporary fix only.
If the attic floor doesn t have a solid surface for you to walk on put enough 2 by 12 boards into the attic opening to create a walkway to use to get to the gable vents.
This attic fan motor is the most expensive repair for attic exhaust fans.
Attic fan repair averages 293 typically costing homeowners between 205 and 427 whole house fan repair ranges from 250 to 350 but can cost up to 650 replacing a broken motor will cost about 125 for an attic fan and between 50 and 100 for a whole house model.